Home / 4,193.71-6,291.24-1,420.55

Finding the Fourth Proportional to 4,193.71, 6,291.24 and 1,420.55

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Solution

The fourth proportional to 4,193.71, 6,291.24 and 1,420.55 is: 2,131.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,193.71 : 6,291.24 = 1,420.55 : x
  2. Step 2: Convert to fraction form
    4,193.71/6,291.24 = 1,420.55/x
  3. Step 3: Cross multiply
    4,193.71x = 6,291.24 × 1,420.55
  4. Step 4: Simplify right side
    4,193.71x = 8,937,020.98
  5. Step 5: Solve for x
    x = 8,937,020.98/4,193.71
  6. Step 6: Final answer
    x = 2,131.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.